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<a class="jxr_linenumber" name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a class="jxr_linenumber" name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright (c) 2009 Kathryn Huxtable and Kenneth Orr.</em>
<a class="jxr_linenumber" name="3" href="#3">3</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="4" href="#4">4</a>   <em class="jxr_comment"> * This file is part of the SeaGlass Pluggable Look and Feel.</em>
<a class="jxr_linenumber" name="5" href="#5">5</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="6" href="#6">6</a>   <em class="jxr_comment"> * Licensed under the Apache License, Version 2.0 (the "License");</em>
<a class="jxr_linenumber" name="7" href="#7">7</a>   <em class="jxr_comment"> * you may not use this file except in compliance with the License.</em>
<a class="jxr_linenumber" name="8" href="#8">8</a>   <em class="jxr_comment"> * You may obtain a copy of the License at</em>
<a class="jxr_linenumber" name="9" href="#9">9</a>   <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="10" href="#10">10</a>  <em class="jxr_comment"> *     <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a class="jxr_linenumber" name="11" href="#11">11</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="12" href="#12">12</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a class="jxr_linenumber" name="13" href="#13">13</a>  <em class="jxr_comment"> * distributed under the License is distributed on an "AS IS" BASIS,</em>
<a class="jxr_linenumber" name="14" href="#14">14</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a class="jxr_linenumber" name="15" href="#15">15</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a class="jxr_linenumber" name="16" href="#16">16</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a class="jxr_linenumber" name="17" href="#17">17</a>  <em class="jxr_comment"> *</em>
<a class="jxr_linenumber" name="18" href="#18">18</a>  <em class="jxr_comment"> * $Id: SeaGlassComboPopup.java 1595 2011-08-09 20:33:48Z rosstauscher@gmx.de $</em>
<a class="jxr_linenumber" name="19" href="#19">19</a>  <em class="jxr_comment"> */</em>
<a class="jxr_linenumber" name="20" href="#20">20</a>  <strong class="jxr_keyword">package</strong> com.seaglasslookandfeel.component;
<a class="jxr_linenumber" name="21" href="#21">21</a>  
<a class="jxr_linenumber" name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> java.awt.Color;
<a class="jxr_linenumber" name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> java.awt.Dimension;
<a class="jxr_linenumber" name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> java.awt.GraphicsConfiguration;
<a class="jxr_linenumber" name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> java.awt.Insets;
<a class="jxr_linenumber" name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> java.awt.Point;
<a class="jxr_linenumber" name="27" href="#27">27</a>  <strong class="jxr_keyword">import</strong> java.awt.Rectangle;
<a class="jxr_linenumber" name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.awt.Toolkit;
<a class="jxr_linenumber" name="29" href="#29">29</a>  
<a class="jxr_linenumber" name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> javax.swing.BoxLayout;
<a class="jxr_linenumber" name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> javax.swing.JComboBox;
<a class="jxr_linenumber" name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> javax.swing.ListSelectionModel;
<a class="jxr_linenumber" name="33" href="#33">33</a>  <strong class="jxr_keyword">import</strong> javax.swing.SwingUtilities;
<a class="jxr_linenumber" name="34" href="#34">34</a>  <strong class="jxr_keyword">import</strong> javax.swing.UIManager;
<a class="jxr_linenumber" name="35" href="#35">35</a>  <strong class="jxr_keyword">import</strong> javax.swing.border.Border;
<a class="jxr_linenumber" name="36" href="#36">36</a>  <strong class="jxr_keyword">import</strong> javax.swing.border.LineBorder;
<a class="jxr_linenumber" name="37" href="#37">37</a>  <strong class="jxr_keyword">import</strong> javax.swing.plaf.basic.BasicComboPopup;
<a class="jxr_linenumber" name="38" href="#38">38</a>  
<a class="jxr_linenumber" name="39" href="#39">39</a>  <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="40" href="#40">40</a>  <em class="jxr_javadoccomment"> * SeaGlassComboPopup. The code to calculate the popup bounds was lifted from</em>
<a class="jxr_linenumber" name="41" href="#41">41</a>  <em class="jxr_javadoccomment"> * Quaqua by Werner Randelshofer.</em>
<a class="jxr_linenumber" name="42" href="#42">42</a>  <em class="jxr_javadoccomment"> *</em>
<a class="jxr_linenumber" name="43" href="#43">43</a>  <em class="jxr_javadoccomment"> * @see javax.swing.plaf.synth.SynthComboPopup</em>
<a class="jxr_linenumber" name="44" href="#44">44</a>  <em class="jxr_javadoccomment"> * @see ch.randelshofer.quaqua.QuaquaComboPopup</em>
<a class="jxr_linenumber" name="45" href="#45">45</a>  <em class="jxr_javadoccomment"> */</em>
<a class="jxr_linenumber" name="46" href="#46">46</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/seaglasslookandfeel/component/SeaGlassComboPopup.html">SeaGlassComboPopup</a> <strong class="jxr_keyword">extends</strong> BasicComboPopup {
<a class="jxr_linenumber" name="47" href="#47">47</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">long</strong> serialVersionUID = -2424496840321170560L;
<a class="jxr_linenumber" name="48" href="#48">48</a>  
<a class="jxr_linenumber" name="49" href="#49">49</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> LEFT_SHIFT = 5;
<a class="jxr_linenumber" name="50" href="#50">50</a>  
<a class="jxr_linenumber" name="51" href="#51">51</a>      <strong class="jxr_keyword">private</strong> Color BORDER_COLOR = UIManager.getColor(<span class="jxr_string">"seaGlassPopupBorder"</span>);
<a class="jxr_linenumber" name="52" href="#52">52</a>  
<a class="jxr_linenumber" name="53" href="#53">53</a>      <strong class="jxr_keyword">private</strong> Border LIST_BORDER = <strong class="jxr_keyword">new</strong> LineBorder(BORDER_COLOR, 1);
<a class="jxr_linenumber" name="54" href="#54">54</a>  
<a class="jxr_linenumber" name="55" href="#55">55</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="56" href="#56">56</a>  <em class="jxr_javadoccomment">     * Creates a new SeaGlassComboPopup object.</em>
<a class="jxr_linenumber" name="57" href="#57">57</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="58" href="#58">58</a>  <em class="jxr_javadoccomment">     * @param combo the combo box.</em>
<a class="jxr_linenumber" name="59" href="#59">59</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="60" href="#60">60</a>      <strong class="jxr_keyword">public</strong> <a href="../../../com/seaglasslookandfeel/component/SeaGlassComboPopup.html">SeaGlassComboPopup</a>(JComboBox combo) {
<a class="jxr_linenumber" name="61" href="#61">61</a>          <strong class="jxr_keyword">super</strong>(combo);
<a class="jxr_linenumber" name="62" href="#62">62</a>      }
<a class="jxr_linenumber" name="63" href="#63">63</a>      
<a class="jxr_linenumber" name="64" href="#64">64</a>      
<a class="jxr_linenumber" name="65" href="#65">65</a>  
<a class="jxr_linenumber" name="66" href="#66">66</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="67" href="#67">67</a>  <em class="jxr_javadoccomment">     * {@inheritDoc}</em>
<a class="jxr_linenumber" name="68" href="#68">68</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="69" href="#69">69</a>      @Override
<a class="jxr_linenumber" name="70" href="#70">70</a>      <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> updateUI() {
<a class="jxr_linenumber" name="71" href="#71">71</a>          <em class="jxr_comment">// TODO Auto-generated method stub</em>
<a class="jxr_linenumber" name="72" href="#72">72</a>          <strong class="jxr_keyword">super</strong>.updateUI();
<a class="jxr_linenumber" name="73" href="#73">73</a>      }
<a class="jxr_linenumber" name="74" href="#74">74</a>  
<a class="jxr_linenumber" name="75" href="#75">75</a>  
<a class="jxr_linenumber" name="76" href="#76">76</a>  
<a class="jxr_linenumber" name="77" href="#77">77</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="78" href="#78">78</a>  <em class="jxr_javadoccomment">     * Is the combo box popup a "drop down" popup, or does it overlay the box?</em>
<a class="jxr_linenumber" name="79" href="#79">79</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="80" href="#80">80</a>  <em class="jxr_javadoccomment">     * @return {@code true} if the popup should drop down from the combo box,</em>
<a class="jxr_linenumber" name="81" href="#81">81</a>  <em class="jxr_javadoccomment">     *         {@code false} if it should overlay the combo box.</em>
<a class="jxr_linenumber" name="82" href="#82">82</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="83" href="#83">83</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isDropDown() {
<a class="jxr_linenumber" name="84" href="#84">84</a>          <strong class="jxr_keyword">return</strong> comboBox.isEditable() || hasScrollBars();
<a class="jxr_linenumber" name="85" href="#85">85</a>      }
<a class="jxr_linenumber" name="86" href="#86">86</a>  
<a class="jxr_linenumber" name="87" href="#87">87</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="88" href="#88">88</a>  <em class="jxr_javadoccomment">     * Does the combo box have scroll bars?</em>
<a class="jxr_linenumber" name="89" href="#89">89</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="90" href="#90">90</a>  <em class="jxr_javadoccomment">     * @return {@code true} if the combo box popup has scroll bars,</em>
<a class="jxr_linenumber" name="91" href="#91">91</a>  <em class="jxr_javadoccomment">     *         {@code false} otherwise.</em>
<a class="jxr_linenumber" name="92" href="#92">92</a>  <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="93" href="#93">93</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> hasScrollBars() {
<a class="jxr_linenumber" name="94" href="#94">94</a>          <strong class="jxr_keyword">return</strong> comboBox.getModel().getSize() &gt; getMaximumRowCount();
<a class="jxr_linenumber" name="95" href="#95">95</a>      }
<a class="jxr_linenumber" name="96" href="#96">96</a>  
<a class="jxr_linenumber" name="97" href="#97">97</a>      <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="98" href="#98">98</a>  <em class="jxr_javadoccomment">     * Is the combo box editable?</em>
<a class="jxr_linenumber" name="99" href="#99">99</a>  <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="100" href="#100">100</a> <em class="jxr_javadoccomment">     * @return {@code true} if the combo box popup is editable, {@code false}</em>
<a class="jxr_linenumber" name="101" href="#101">101</a> <em class="jxr_javadoccomment">     *         otherwise.</em>
<a class="jxr_linenumber" name="102" href="#102">102</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="103" href="#103">103</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> isEditable() {
<a class="jxr_linenumber" name="104" href="#104">104</a>         <strong class="jxr_keyword">return</strong> comboBox.isEditable();
<a class="jxr_linenumber" name="105" href="#105">105</a>     }
<a class="jxr_linenumber" name="106" href="#106">106</a> 
<a class="jxr_linenumber" name="107" href="#107">107</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="108" href="#108">108</a> <em class="jxr_javadoccomment">     * Configures the list which is used to hold the combo box items in the</em>
<a class="jxr_linenumber" name="109" href="#109">109</a> <em class="jxr_javadoccomment">     * popup. This method is called when the UI class is created.</em>
<a class="jxr_linenumber" name="110" href="#110">110</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="111" href="#111">111</a>     @Override
<a class="jxr_linenumber" name="112" href="#112">112</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> configureList() {
<a class="jxr_linenumber" name="113" href="#113">113</a>         list.setFont(comboBox.getFont());
<a class="jxr_linenumber" name="114" href="#114">114</a>         list.setBorder(<strong class="jxr_keyword">null</strong>);
<a class="jxr_linenumber" name="115" href="#115">115</a>         list.setCellRenderer(comboBox.getRenderer());
<a class="jxr_linenumber" name="116" href="#116">116</a>         list.setFocusable(false);
<a class="jxr_linenumber" name="117" href="#117">117</a>         list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
<a class="jxr_linenumber" name="118" href="#118">118</a>         <strong class="jxr_keyword">int</strong> selectedIndex = comboBox.getSelectedIndex();
<a class="jxr_linenumber" name="119" href="#119">119</a> 
<a class="jxr_linenumber" name="120" href="#120">120</a>         <strong class="jxr_keyword">if</strong> (selectedIndex == -1) {
<a class="jxr_linenumber" name="121" href="#121">121</a>             list.clearSelection();
<a class="jxr_linenumber" name="122" href="#122">122</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="123" href="#123">123</a>             list.setSelectedIndex(selectedIndex);
<a class="jxr_linenumber" name="124" href="#124">124</a>             list.ensureIndexIsVisible(selectedIndex);
<a class="jxr_linenumber" name="125" href="#125">125</a>         }
<a class="jxr_linenumber" name="126" href="#126">126</a> 
<a class="jxr_linenumber" name="127" href="#127">127</a>         installListListeners();
<a class="jxr_linenumber" name="128" href="#128">128</a>     }
<a class="jxr_linenumber" name="129" href="#129">129</a> 
<a class="jxr_linenumber" name="130" href="#130">130</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="131" href="#131">131</a> <em class="jxr_javadoccomment">     * Configures the popup portion of the combo box. This method is called when</em>
<a class="jxr_linenumber" name="132" href="#132">132</a> <em class="jxr_javadoccomment">     * the UI class is created.</em>
<a class="jxr_linenumber" name="133" href="#133">133</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="134" href="#134">134</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> configurePopup() {
<a class="jxr_linenumber" name="135" href="#135">135</a>         setLayout(<strong class="jxr_keyword">new</strong> BoxLayout(<strong class="jxr_keyword">this</strong>, BoxLayout.Y_AXIS));
<a class="jxr_linenumber" name="136" href="#136">136</a>         setBorderPainted(<strong class="jxr_keyword">true</strong>);
<a class="jxr_linenumber" name="137" href="#137">137</a>         setBorder(LIST_BORDER);
<a class="jxr_linenumber" name="138" href="#138">138</a>         setOpaque(false);
<a class="jxr_linenumber" name="139" href="#139">139</a>         add(scroller);
<a class="jxr_linenumber" name="140" href="#140">140</a>         setDoubleBuffered(<strong class="jxr_keyword">true</strong>);
<a class="jxr_linenumber" name="141" href="#141">141</a>         setFocusable(false);
<a class="jxr_linenumber" name="142" href="#142">142</a>     }
<a class="jxr_linenumber" name="143" href="#143">143</a> 
<a class="jxr_linenumber" name="144" href="#144">144</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="145" href="#145">145</a> <em class="jxr_javadoccomment">     * Calculate the placement and size of the popup portion of the combo box</em>
<a class="jxr_linenumber" name="146" href="#146">146</a> <em class="jxr_javadoccomment">     * based on the combo box location and the enclosing screen bounds. If no</em>
<a class="jxr_linenumber" name="147" href="#147">147</a> <em class="jxr_javadoccomment">     * transformations are required, then the returned rectangle will have the</em>
<a class="jxr_linenumber" name="148" href="#148">148</a> <em class="jxr_javadoccomment">     * same values as the parameters.</em>
<a class="jxr_linenumber" name="149" href="#149">149</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="150" href="#150">150</a> <em class="jxr_javadoccomment">     * @param  px starting x location</em>
<a class="jxr_linenumber" name="151" href="#151">151</a> <em class="jxr_javadoccomment">     * @param  py starting y location</em>
<a class="jxr_linenumber" name="152" href="#152">152</a> <em class="jxr_javadoccomment">     * @param  pw starting width</em>
<a class="jxr_linenumber" name="153" href="#153">153</a> <em class="jxr_javadoccomment">     * @param  ph starting height</em>
<a class="jxr_linenumber" name="154" href="#154">154</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="155" href="#155">155</a> <em class="jxr_javadoccomment">     * @return a rectangle which represents the placement and size of the popup</em>
<a class="jxr_linenumber" name="156" href="#156">156</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="157" href="#157">157</a>     <strong class="jxr_keyword">protected</strong> Rectangle computePopupBounds(<strong class="jxr_keyword">int</strong> px, <strong class="jxr_keyword">int</strong> py, <strong class="jxr_keyword">int</strong> pw, <strong class="jxr_keyword">int</strong> ph) {
<a class="jxr_linenumber" name="158" href="#158">158</a>         Toolkit   toolkit      = Toolkit.getDefaultToolkit();
<a class="jxr_linenumber" name="159" href="#159">159</a>         Rectangle screenBounds;
<a class="jxr_linenumber" name="160" href="#160">160</a>         <strong class="jxr_keyword">int</strong>       listWidth    = getList().getPreferredSize().width;
<a class="jxr_linenumber" name="161" href="#161">161</a>         Insets    margin       = comboBox.getInsets();
<a class="jxr_linenumber" name="162" href="#162">162</a> 
<a class="jxr_linenumber" name="163" href="#163">163</a>         <strong class="jxr_keyword">if</strong> (hasScrollBars()) {
<a class="jxr_linenumber" name="164" href="#164">164</a>             px += margin.left;
<a class="jxr_linenumber" name="165" href="#165">165</a>             pw = Math.max(pw - margin.left - margin.right, listWidth + 16);
<a class="jxr_linenumber" name="166" href="#166">166</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="167" href="#167">167</a>             px += margin.left;
<a class="jxr_linenumber" name="168" href="#168">168</a>             pw = Math.max(pw - LEFT_SHIFT - margin.left, listWidth);
<a class="jxr_linenumber" name="169" href="#169">169</a>         }
<a class="jxr_linenumber" name="170" href="#170">170</a> 
<a class="jxr_linenumber" name="171" href="#171">171</a>         <em class="jxr_comment">// Calculate the desktop dimensions relative to the combo box.</em>
<a class="jxr_linenumber" name="172" href="#172">172</a>         GraphicsConfiguration gc = comboBox.getGraphicsConfiguration();
<a class="jxr_linenumber" name="173" href="#173">173</a>         Point                 p  = <strong class="jxr_keyword">new</strong> Point();
<a class="jxr_linenumber" name="174" href="#174">174</a> 
<a class="jxr_linenumber" name="175" href="#175">175</a>         SwingUtilities.convertPointFromScreen(p, comboBox);
<a class="jxr_linenumber" name="176" href="#176">176</a> 
<a class="jxr_linenumber" name="177" href="#177">177</a>         <strong class="jxr_keyword">if</strong> (gc == <strong class="jxr_keyword">null</strong>) {
<a class="jxr_linenumber" name="178" href="#178">178</a>             screenBounds = <strong class="jxr_keyword">new</strong> Rectangle(p, toolkit.getScreenSize());
<a class="jxr_linenumber" name="179" href="#179">179</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="180" href="#180">180</a> 
<a class="jxr_linenumber" name="181" href="#181">181</a>             <em class="jxr_comment">// Get the screen insets.</em>
<a class="jxr_linenumber" name="182" href="#182">182</a>             Insets screenInsets = Toolkit.getDefaultToolkit().getScreenInsets(gc);
<a class="jxr_linenumber" name="183" href="#183">183</a> 
<a class="jxr_linenumber" name="184" href="#184">184</a>             screenBounds        =  <strong class="jxr_keyword">new</strong> Rectangle(gc.getBounds());
<a class="jxr_linenumber" name="185" href="#185">185</a>             screenBounds.width  -= (screenInsets.left + screenInsets.right);
<a class="jxr_linenumber" name="186" href="#186">186</a>             screenBounds.height -= (screenInsets.top + screenInsets.bottom);
<a class="jxr_linenumber" name="187" href="#187">187</a>             screenBounds.x      += screenInsets.left;
<a class="jxr_linenumber" name="188" href="#188">188</a>             screenBounds.y      += screenInsets.top;
<a class="jxr_linenumber" name="189" href="#189">189</a>         }
<a class="jxr_linenumber" name="190" href="#190">190</a> 
<a class="jxr_linenumber" name="191" href="#191">191</a>         <strong class="jxr_keyword">if</strong> (isDropDown()) {
<a class="jxr_linenumber" name="192" href="#192">192</a> 
<a class="jxr_linenumber" name="193" href="#193">193</a>             <strong class="jxr_keyword">if</strong> (isEditable()) {
<a class="jxr_linenumber" name="194" href="#194">194</a>                 py -= margin.bottom + 2;
<a class="jxr_linenumber" name="195" href="#195">195</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="196" href="#196">196</a>                 py -= margin.bottom;
<a class="jxr_linenumber" name="197" href="#197">197</a>             }
<a class="jxr_linenumber" name="198" href="#198">198</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="199" href="#199">199</a>             <strong class="jxr_keyword">int</strong> yOffset       = -margin.top;
<a class="jxr_linenumber" name="200" href="#200">200</a>             <strong class="jxr_keyword">int</strong> selectedIndex = comboBox.getSelectedIndex();
<a class="jxr_linenumber" name="201" href="#201">201</a> 
<a class="jxr_linenumber" name="202" href="#202">202</a>             <strong class="jxr_keyword">if</strong> (selectedIndex &lt;= 0) {
<a class="jxr_linenumber" name="203" href="#203">203</a>                 py = -yOffset;
<a class="jxr_linenumber" name="204" href="#204">204</a>             } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="205" href="#205">205</a>                 py = -yOffset - list.getCellBounds(0, selectedIndex - 1).height;
<a class="jxr_linenumber" name="206" href="#206">206</a> 
<a class="jxr_linenumber" name="207" href="#207">207</a>             }
<a class="jxr_linenumber" name="208" href="#208">208</a>         }
<a class="jxr_linenumber" name="209" href="#209">209</a> 
<a class="jxr_linenumber" name="210" href="#210">210</a>         <em class="jxr_comment">// Compute the rectangle for the popup menu</em>
<a class="jxr_linenumber" name="211" href="#211">211</a>         Rectangle rect = <strong class="jxr_keyword">new</strong> Rectangle(px, Math.max(py, p.y + screenBounds.y), Math.min(screenBounds.width, pw),
<a class="jxr_linenumber" name="212" href="#212">212</a>                                        Math.min(screenBounds.height - 40, ph));
<a class="jxr_linenumber" name="213" href="#213">213</a> 
<a class="jxr_linenumber" name="214" href="#214">214</a>         <em class="jxr_comment">// Add the preferred scroll bar width, if the popup does not fit</em>
<a class="jxr_linenumber" name="215" href="#215">215</a>         <em class="jxr_comment">// on the available rectangle.</em>
<a class="jxr_linenumber" name="216" href="#216">216</a>         <strong class="jxr_keyword">if</strong> (rect.height &lt; ph) {
<a class="jxr_linenumber" name="217" href="#217">217</a>             rect.width += 16;
<a class="jxr_linenumber" name="218" href="#218">218</a>         }
<a class="jxr_linenumber" name="219" href="#219">219</a> 
<a class="jxr_linenumber" name="220" href="#220">220</a>         <strong class="jxr_keyword">return</strong> rect;
<a class="jxr_linenumber" name="221" href="#221">221</a>     }
<a class="jxr_linenumber" name="222" href="#222">222</a> 
<a class="jxr_linenumber" name="223" href="#223">223</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="224" href="#224">224</a> <em class="jxr_javadoccomment">     * Sets the list selection index to the selectedIndex. This method is used</em>
<a class="jxr_linenumber" name="225" href="#225">225</a> <em class="jxr_javadoccomment">     * to synchronize the list selection with the combo box selection.</em>
<a class="jxr_linenumber" name="226" href="#226">226</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="227" href="#227">227</a> <em class="jxr_javadoccomment">     * @param selectedIndex the index to set the list</em>
<a class="jxr_linenumber" name="228" href="#228">228</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="229" href="#229">229</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">void</strong> setListSelection(<strong class="jxr_keyword">int</strong> selectedIndex) {
<a class="jxr_linenumber" name="230" href="#230">230</a>         <strong class="jxr_keyword">if</strong> (selectedIndex == -1) {
<a class="jxr_linenumber" name="231" href="#231">231</a>             list.clearSelection();
<a class="jxr_linenumber" name="232" href="#232">232</a>         } <strong class="jxr_keyword">else</strong> {
<a class="jxr_linenumber" name="233" href="#233">233</a>             list.setSelectedIndex(selectedIndex);
<a class="jxr_linenumber" name="234" href="#234">234</a>             list.ensureIndexIsVisible(selectedIndex);
<a class="jxr_linenumber" name="235" href="#235">235</a>         }
<a class="jxr_linenumber" name="236" href="#236">236</a>     }
<a class="jxr_linenumber" name="237" href="#237">237</a> 
<a class="jxr_linenumber" name="238" href="#238">238</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="239" href="#239">239</a> <em class="jxr_javadoccomment">     * Implementation of ComboPopup.show().</em>
<a class="jxr_linenumber" name="240" href="#240">240</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="241" href="#241">241</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> show() {
<a class="jxr_linenumber" name="242" href="#242">242</a>         setListSelection(comboBox.getSelectedIndex());
<a class="jxr_linenumber" name="243" href="#243">243</a> 
<a class="jxr_linenumber" name="244" href="#244">244</a>         Point location = getPopupLocation();
<a class="jxr_linenumber" name="245" href="#245">245</a> 
<a class="jxr_linenumber" name="246" href="#246">246</a>         show(comboBox, location.x, location.y);
<a class="jxr_linenumber" name="247" href="#247">247</a> 
<a class="jxr_linenumber" name="248" href="#248">248</a>         <em class="jxr_comment">// For some reason, this is needed to clear the old selection being</em>
<a class="jxr_linenumber" name="249" href="#249">249</a>         <em class="jxr_comment">// displayed. Calling list.clearSelection() doesn't cut it.</em>
<a class="jxr_linenumber" name="250" href="#250">250</a>         list.repaint();
<a class="jxr_linenumber" name="251" href="#251">251</a>     }
<a class="jxr_linenumber" name="252" href="#252">252</a> 
<a class="jxr_linenumber" name="253" href="#253">253</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="254" href="#254">254</a> <em class="jxr_javadoccomment">     * Get the maximum row count to display. If none is set, return 100.</em>
<a class="jxr_linenumber" name="255" href="#255">255</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="256" href="#256">256</a> <em class="jxr_javadoccomment">     * @return the maximum row count to display.</em>
<a class="jxr_linenumber" name="257" href="#257">257</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="258" href="#258">258</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> getMaximumRowCount() {
<a class="jxr_linenumber" name="259" href="#259">259</a>        <em class="jxr_comment">// return isEditable() ? comboBox.getMaximumRowCount() : 100;</em>
<a class="jxr_linenumber" name="260" href="#260">260</a>         <strong class="jxr_keyword">return</strong> comboBox.getMaximumRowCount();
<a class="jxr_linenumber" name="261" href="#261">261</a>     }
<a class="jxr_linenumber" name="262" href="#262">262</a> 
<a class="jxr_linenumber" name="263" href="#263">263</a>     <em class="jxr_javadoccomment">/**</em>
<a class="jxr_linenumber" name="264" href="#264">264</a> <em class="jxr_javadoccomment">     * Calculates the upper left location of the Popup.</em>
<a class="jxr_linenumber" name="265" href="#265">265</a> <em class="jxr_javadoccomment">     *</em>
<a class="jxr_linenumber" name="266" href="#266">266</a> <em class="jxr_javadoccomment">     * @return the Point representing the upper-left coordinate of the Popup.</em>
<a class="jxr_linenumber" name="267" href="#267">267</a> <em class="jxr_javadoccomment">     */</em>
<a class="jxr_linenumber" name="268" href="#268">268</a>     <strong class="jxr_keyword">private</strong> Point getPopupLocation() {
<a class="jxr_linenumber" name="269" href="#269">269</a>         Dimension popupSize = comboBox.getSize();
<a class="jxr_linenumber" name="270" href="#270">270</a>         Insets    insets    = getInsets();
<a class="jxr_linenumber" name="271" href="#271">271</a> 
<a class="jxr_linenumber" name="272" href="#272">272</a>         <em class="jxr_comment">// reduce the width of the scrollpane by the insets so that the popup</em>
<a class="jxr_linenumber" name="273" href="#273">273</a>         <em class="jxr_comment">// is the same width as the combo box.</em>
<a class="jxr_linenumber" name="274" href="#274">274</a>         popupSize.setSize(popupSize.width - (insets.right + insets.left), getPopupHeightForRowCount(getMaximumRowCount()));
<a class="jxr_linenumber" name="275" href="#275">275</a>         Rectangle popupBounds   = computePopupBounds(0, comboBox.getBounds().height, popupSize.width, popupSize.height);
<a class="jxr_linenumber" name="276" href="#276">276</a>         Dimension scrollSize    = popupBounds.getSize();
<a class="jxr_linenumber" name="277" href="#277">277</a>         Point     popupLocation = popupBounds.getLocation();
<a class="jxr_linenumber" name="278" href="#278">278</a> 
<a class="jxr_linenumber" name="279" href="#279">279</a>         scroller.setMaximumSize(scrollSize);
<a class="jxr_linenumber" name="280" href="#280">280</a>         scroller.setPreferredSize(scrollSize);
<a class="jxr_linenumber" name="281" href="#281">281</a>         scroller.setMinimumSize(scrollSize);
<a class="jxr_linenumber" name="282" href="#282">282</a> 
<a class="jxr_linenumber" name="283" href="#283">283</a>         list.revalidate();
<a class="jxr_linenumber" name="284" href="#284">284</a> 
<a class="jxr_linenumber" name="285" href="#285">285</a>         <strong class="jxr_keyword">return</strong> popupLocation;
<a class="jxr_linenumber" name="286" href="#286">286</a>     }
<a class="jxr_linenumber" name="287" href="#287">287</a> }
</pre>
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